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J/AJ/104/92
  HII Regions Properties in M101 (Scowen+ 1992)
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img(gal)
1.J/AJ/104/92/fig34567Table of derived properties of HII regions used in Figures 3,4,5,6 and 7. Higher threshold used. [Rnum,CHb,O3Hb,S2Ha,OH,U,Q] (248 rows)
2.J/AJ/104/92/table0(c)Table of observed properties of HII regions used in paper. Not explicitly presented in paper - see last paragraph of Summary section in paper. [Rnum,RAh,RAm,RAs,DEd,DEm,DEs,A, Ha,Hb,O3,S2,Rad] (248 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)Rnum  (i) [2/323] HII Region Reference Number (meta.id;meta.main)
  (1)CHb  Balmer Decrement as C(H beta) (phot.flux;arith.ratio)
  (1)O3Hb  Ratio of [O III] to H beta (phot.flux;arith.ratio)
  (1)S2Ha  Ratio of [S II] to H alpha (phot.flux;arith.ratio)
  (1)OH  Oxygen Abundance as 12+log(O/H) (phys.abund)
  (1)U  Ionization Parameter (phys.ionizParam.rad)
  (1)Q 10+45ct/sNumber of Ionizing photons /s (phys.luminosity)
  (2)RA1950 "h:m:s" (i) Region RA Hour (1950.0) (pos.eq.ra;meta.main)
  (2)DE1950 "d:m:s" (n)(i) [+] Sign of declination (pos.eq.dec;meta.main)
  (2)A pix2 Region Area, 1 pix = 1.2 arcsec (phys.area;instr)
  (2)Ha mW/m2/pixH alpha surf.brightness, 1pix=1.2" (phot.flux.sb)
  (2)Hb mW/m2/pixH beta surf.brightness, 1pix=1.2" (phot.flux.sb)
  (2)O3 mW/m2/pixsurf.brightness, [OIII], 1pix=1.2" (phot.flux.sb)
  (2)S2 mW/m2/pixsurf.brightness, [S II], 1pix=1.2" (phot.flux.sb)
  (2)Rad pc Radial distance of region in galaxy (pos.distance)

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